Thavek



(No Model.)

0. E. BRUNTHAVER. INDICATOR.

No. 443,814. Patented Dec. 26 1890.

Wibvmooeo Suva/W606 J $51 hi5 Mozwu W.

UNITED STATES PATENT .OFFICE.

CHARLES E.'BRUNTHAVER, OF \VASHINGTON, DISTRICT OF COLUMBIA.

INDICATOR.

SPECIFICATION forming part of Letters Patent No. 443,314, dated December23, 1890.

Application filed March 20, 1890.

To all whom it may concern.-

Be it, known that 1, CHARLES E. BRUN- THAVER, a citizen of the UnitedStates, residing at Washington, in'the District of Col umbia, haveinvented certain new and useful Improvements in Indicators; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit appertains to make and use the same.

This invention relates in general to that class of instruments ofprecision termed indicators, and particularly to that class ofindicators which are adapted to show by successive steps a series ofobjects, such as the names of stations ona railroad or ofstreetcrossings on a street-ear line, or to show a series of partsoccurring in the same object, such as the lines of a proof-sheet or ofcopy, or such as the names of periods of time on a calendar, (he. andthe object of the invention is, first, to provide means for exhibitingat once any desired portion of a sheet of paper orsimilarflexiblematerial; second, to provide means for advancing the said paper therequired distance, whatever that maybe, at each step, and, third, toprovide means for operating upon or using copy-sheets of varying lengthsor calendars or railway-lists of any length, or even in belt form on thesame instrument.

To this end my invention consists in the construction and combination ofparts forming an indicator, hereinafter described and claimed, referencebeing had to the accompanying drawings, in which Figure I is a frontview,-Fig. II is an end View, and Fig. III is a longitudinal verticalsection, of a form of my indicator adapted to exhibit copy forproof-reading or for typewriters, copyists, or any similar use. Fig. 1Vrepresents a transverse vertical section of a modification of myindicator adapted for indicating the names of stations or streets or theperiods of time on a calendar or any similar device, wherein acontinuous series of events is likely to be repeated in a cycle or belt.Fig. V represents a transverse vertical section at X of either the feedor detent drum.

6 represents a frame of any suitable material-such, for example, assheet-brass provided with two posts 7 at each end, form- Serial No.344,622. (No model.)

ing open bearings, in which two rollers 8 9 are journaled, one to restor roll upon the other.

' 10 11 are gear-wheels fixed upon the rollers 8 9, respectively, andengaging each other to insure both rollers turning together with certainty.

12 represents a ratchet-wheel fixed upon the shaft 13 of the roller 9.

14 is a drum provided with a hub 15, fitted to revolve freely upon theshaft 13 outside of the ratchet-wheel 12, the drum incasing the saidwheel.

16 17 18 19 arespring-pawls secured within the drum 1%, and 'adapted attheir free ends to engage the teeth of the ratchet 12. The pawl 16 hasjust sprung over a tooth, the pawl 17 rests upon one-quarterof a tooth,the pawl 18 rests twice as far on another, and the pawl 19 rests threetimes as far on yet another tooth. There may be any desired number ofpawls thus graduated, so that however little or much the drum may bemoved some pawl may be ready to engage a tooth.

38 represents a drum, inside of which there are a ratchet-wheel andpawls exactly corresponding to the wheel 14 and pawls 16 17 18 19; butthe drum 38 is fixed to the frame 6, so that its pawls serve as detentsto prevent the roller being revolved backward by the return action ofthe aforesaid pawls.

Fig. Vrepresents either drum let or 38 with its contents.

20 is a spacing or operating key pivoted to theframe at 21 and providedwith two arms 22 23, to which acord 24 is attached. This cord :is woundaround the hub 15, whereby any movement of the key 20 will betransmitted to the drum 14 to rotate it and with it the ratchet wheeland rollers. A stop 25 fixed to the frame, limits the upward move-.

.31, through which binding-screws 30 pass into the frame 6 to bind theshield in anyposition to which it has been adjusted. 32 is anothershield, also fixed to the frame by means of ICO screws 33. This shieldmight also be slotted similarly to shield 29 to suit some situations.

34: represents a sheet of paper passing between the rollers and behindthe shields with a line at 39 exposed to View. By means of theadjustable shield 29 one or more lines of space on the copy may beexposed at once, and the view may be adjusted to lines of differentwidths, and by means of the adjusting-screw 26 the key 20 may bepermitted to move so far as to rotate the rollers 8 9 far enough to feedthe paper to correspond with the said view or opening between theshields, and the various pawls 16 17 18 1S) enable the key to operatewith the greatest exactness, so that the ruling of any paper or thespacing of lines maybe matched. \Vere it not for this means of accurateadjustment any slight variation between the spacings and the lines wouldcause the lines to gradually creep behind the shield. The paper may beof any length.

35 represents springs adapted to bear on the shaftof the upper roller orto press it upon the paper in case the weight of the roll isnotsutficient to draw the paper through.

Fig. IV-shows the manner in which a long belt of paper would be foldedby the machine in a small box adapted for car indicators or calendars.

The shield in adjustable parts accomplishes anyfirst object, theratchet-wheels and the series of pawls with graduated lengths accomplishthe second, and the feed-rollers geared one above the other, with theconnected parts described, accomplish the third.

Having thus fully described my invention, what I believe to be new, anddesire to secure by Letters Patent, is the following:

1. The combination, in indicators, of. a roller journaled in a frame, asecond roller journaled freely in its bearings to rest upon the firstroller, springs fitted to bear upon the journals of the second roller,gear-wheels upon the two rollers adapted to engage each other, and twoshields in front of the rollers having an open space between them,substantially as shown and described.

2 The combination,inindicators, of afeedroller having a ratchet-wheelfixed to it, a drum surrounding the ratchet-wheel and having a hubfreely journaled on the shaft there of, a series of spring-pawls fixedin the drum to engage the teeth of the ratchet-wheel, a key-lcver havingtwo arms and pivoted to the frame, and a cord wound upon the said huband connected with the two arms, substantiall y as shown and described.

3. The combination of a feed-roller having a ratchet-wheel fixed to it,a key-lever pivoted to the frame, means connecting the lever with theratchet-wheel, whereby movements of the lever will revolve the wheel,stops to limit the motion of the lever, one of the said stops beingadjustable, substantially as shown and described.

4. The combination, in indicators, of a frame, rollers jonrnaledtherein, and two shields in front of the rollers, one of the saidshields being adjustable, substantially as shown and described.

5. The combination, in indicators, of a feedroller having aratehetavheel fixed to it, a drum surrounding the roller, and a seriesof spring-pawls secured to the drum and located around the ratchet toengage the teeth at short intervals apart, substantially as shown anddescribed, whereby the movements of the ratchet-wheel maybe graded tospaces shorter than spaces between teeth, as set forth.

6. The combination,in indicators,of a feedroller having tworatchet-wheels upon it, the teeth of both facing in the same directionaround the wheels, a drum around one ratchet-wheel mounted on a shaft torevolve therewith,another drum around the other ratchetwheel fixed notto revolve, and a series of spring-pawls fixed in each of the drums, solocated as to engage the teeth of the ratchets in successive order,substantially as-shown and described, whereby the amount of rotation ofthe ratchets byone drum maybe regulated tospaces shorter than the spacesbetween teeth and whereby the retention of the ratchets at anystopping-place is secured.

In testimony whereof I afiix my signature in presence of two witnesses.

Witnesses:

P. E. S'rEvENs, W. X. STEVENS.

